My favorites include:
What are you mixed with?
I have black friends, so I'm not racist or anything...
It must have been easy for you to get in/get that scholarship!
Sometimes it's easy to think you're crazy for getting riled up over a question or a comment, but micro-aggressions like these perpetuate the racism we see reflected in larger systems and structures that dominate our lives and society. You're not crazy; you want to go an entire day without somebody reminding you that to be black is still to be "other," that blackness means living in the margins. I didn't reach that particular goal today, but did you? Is there a common aggression that wasn't listed?